The alarm came at 19.45 on Tuesday evening. According to the alarm, there is an explosion in Eons transformer station in Bergeforsen, Timrå municipality.
The emergency services tone down "explosion" to smoke development from the building. At 20 o'clock, the emergency services were still waiting for Eon personnel to turn off the power so that rescue crews could enter the building.
It is unclear if anyone was injured because they could not scan the transformer station.
This article will be updated.